MOD10C1 and MYD10C1 Global Attributes
The MOD10C1 and MYD10C1 snow cover products include three EOSDIS Core System (ECS) global attributes; these are stored as long character strings in parameter value language (PVL) format. MOD10C1 also includes product specific attributes.
CoreMetadata.0
ArchiveMetadata.0
StructMetadata.0
Product Specific Attributes
CoreMetadata.0
| Object Name | Comments | Sample Value |
| ShortName | ESDT¹ name of product | MOD10C1 |
| VersionID | ECS Collection Version | 4 |
| ReprocessingActual | Number of times processed | reprocessed |
| ReprocessingPlanned | Expect that products will be reprocessed at least once | further update is anticipated |
| LocalGranuleID | MOD10C1....hdf | |
| DayNightFlag | Both | |
| ProductionDateTime | Time granule was produced | 2002-08-06T20:09:48.000Z |
| LocalVersionID | Version of algorithm delivered from the SCF². | SCF V4.0.0 |
| PGEVersion | Version of PGE in MODAPS | 4.0.0 |
| InputPointer | Names of input files | MOD10A1.A2002033... |
| RangeBeginningDate | Beginning date of the first scan line in the swath | 2001-07-12 |
| RangeBeginningTime | Beginning time of the first scan line in the swath | 22:35:00.000000 |
| RangeEndingDate | Ending date of the last scan line in the swath | 2001-07-12 |
| RangeEndingTime | Ending time of the last scan line in the swath | 22:40:00.000000 |
| GRingPointLatitude | Geographic latitude bounds of swath coverage | [90.000000, 90.000000, -90.000000, -90.000000] |
| GringPointLongitude | Geographic longitude bounds of swath coverage | [-180.000000, 180.000000, -180.000000, 180.000000] |
| GRingPointSequenceNo | [1,2,3,4] | |
| ParameterName | Parameter for which QA statistics are given in this metadata object | Day Global Snow Cover |
| AutomaticQualityFlag | Result of automated checks during the run of the algorithm that screens for significant amounts of anomalous data |
Passed |
| AutomaticQualityFlagExplanation | Explanation of result of automated QA checks made during execution | No errors detected in processing |
| QAPercentMissingData | 0-100 | 1 |
| QAPercentCloudCover | 0-100 | 5 |
| AssociatedPlatformShortName | Terra | |
| AssociatedInstrumentShortName | MODIS | |
| AssociatedSensorShortName | MODIS | |
| Product Specific Attributes (PSA) | ||
|---|---|---|
| QAPERCENTGOODQUALITY | Summary quality assurance statistics for data product. Note: pixels identified as cloud are considered "Good Quality" |
91 |
| QAPERCENTOTHERQUALITY | 1 | |
| QAPERCENTNOTPRODUCEDCLOUD | 5 | |
| QAPERCENTNOTPRODUCEDOTHER | 3 | |
| SNOWCOVERPERCENT | Summary percentage of snow-covered land | 68 |
¹ Earth Science Data Type (ESDT)
² Science Computing Facility (SCF)
ArchiveMetadata.0
This attribute contains information relevant to production of the data product. It also contains an alternate bounding of geographic coverage of the swath. These data are useful in determining what version of the algorithm was used to generate the product.
| Object Name | Comment | Sample Value |
| GlobalGridColumns | 1440 | |
| GlobalGridRows | 720 | |
| AlgorithmPackageAcceptanceDate | Algorithm descriptors | 08-05-2002 |
| AlgorithmPackageMaturityCode | OPL | |
| AlgorithmPackageName | MOD_PR10C1 | |
| AlgorithmPackageVersion | Version 4.0.0 | |
| InstrumentName | Moderate-Resolution Imaging SpectroRadiometer | |
| PlatformShortName | Terra | |
| ProcessingDateTime | 2002-08-06T16:09:20.000Z | |
| LongName | MODIS/Terra Snow Cover Daily L3 Global 0.25Deg CMG Grid | |
| Processing Center | MODAPS | |
| SPSOParameters | none | |
| EastBoundingCoordinate | Extent of swath coverage in latitude and longitude | -78.324016 |
| WestBoundingCoordinate | -108.884088 | |
| NorthBounding Coordinate | 50.000000 | |
| SouthBounding Coordinate | 40.000000 | |
| DESCRRevision | Version of MCF used | 3.0 |
StructMetadata.0
This attribute is used by the HDF-EOS toolkit to specify the mapping relationships between the geolocation data and the snow cover Scientific Data Sets (SDSs). Mapping relationships are unique in HDF-EOS and are stored in the product using HDF structures. A description of the mapping relationships is not provided here.
| Object | Definition |
| GRIDNAME | MOD_CMG_Snow_QuartDeg |
| PROJECTION | GCTP_GEO |
| DATAFIELD_1 | Day_CMG_Snow_Cover |
| DATAFIELD_2 | Day_CMG_Confidence_Index |
| DATAFIELD_3 | Day_CMG_Cloud_Obscured |
| DATAFIELD_4 | Snow_Spatial_QA |
Product Specific Attributes
| Attribute Name | Comment | Sample Value |
| HDFEOSVersion | Version of HDF-EOS Toolkit | HDFEOS_V2.4 |
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